List of top Physics Questions on Spherical Mirrors

A concave lens and a convex lens have same focal length of $20$ cm and both put in contact with combination is used to view an object $5$ cm long kept at $20$ cm from the lens combination. As compared to object the image will be.
In an experiment to find the focal length of a concave mirror a graph is drawn between the magnitudcs of $u$ and $v$. The graph looks like
A concave lens of glass, refractive index 1.5 has both surfaces of same radius of curvature R. On immersion in a medium of refractive index 1.75, it will behave as a
A spherical surface of radius of curvature R, separates air (refractive index 1.0) from glass (refractive index 1.5). The centre of curvature is in the glass. A point object P placed in air is found to have a real image Q in the glass. The line PQ cuts the surface at a point O and PO = O The distance PO is equal to
A concave mirror is placed on a horizontal table with its axis directed vertically upwards. Let O be the pole of the mirror and C its centre of curvature. A point object is placed at C. It has a real image, also located at C. If the mirror is now filled with water, the image will be
Colour of light having maximum speed in air is
The focal length of a spherical mirror made of steel is $150 \,cm$. If the temperature of the mirror increases by $200\, K$, its focal length become (coefficient of linear expansion of steel $\alpha=12 \times 10^{-6 \circ} C ^{-1} .$ )
A convex lens of glass is immersed in water compared to its power in air, its power in water will
A clock hung on a wall has marks instead of numerals on its dial on the adjoining wall there is a plane mirror and the image of the clock in the mirror indicates the time $7 : 10$. Then the time on the clock is:
When a convex mirror of focal length $f$ produces an image $\left(\frac{1}{n}\right)th$ of the size of the object ,then distance of the object from the mirror is
The pair producing virtual as well as real image is
The number of capital letters such as $A, B, C, D$ ... which are not laterally inverted by a plane mirror?
The direction of ray of light incident on a concave mirror is shown by $PQ$ while directions in which the ray would travel after reflection is shown by four rays marked $1, 2, 3$ and $4$. Which of the four rays correctly shows the direction of reflected ray?
If u represents object distance from pole of spherical mirror and $v$represents image distance from pole of mirror and f is the focal length of the mirror, then a straight line u = $v$ will,cut u versus $v$ graph at
An infinitely long rod lies along the axis of a concave mirror of focal length . The near end of the rod is a fa distance $u > f$ from the mirror. Its image will have a length
A plane mirror is approaching you at 10 cm/s You can see your image in it.The image will approach you with a speed of